In order to unlock Kukulkan's 3rd and final Saint Graph, you need to reach 3rdAscension, and then clear the "Nahui Mictlan: Act 22". CollapseForeigner 5★Abigail Williams•Katsushika Hokusai•Yang Guifei•Voyager•Abigail Williams (Summer)•Van Gogh•Jacques de Molay•Koyanskaya of...